GX2245 Replaces LTC2245 in Wireless Broadband Communications

High sampling rate ADCs are commonly used in modern wireless broadband communication designs to convert wireless broadband signals into digital signals for subsequent processing and analysis. Its high accuracy and high sampling rate can improve the signal-to-noise ratio and spurious-free dynamic range of wireless communication systems, thus improving communication quality. This paper focuses on the ADC GX2245 replacing the LTC2245 for this program, which is a cost-effective alternative.

GX2245 is a multi-stage differential pipeline architecture dual-channel, 14-bit ADC, built-in high-performance sample-and-hold circuitry and on-chip reference voltage source, using a 3V analog power supply power supply, a separate output power supply can drive 0.5V to 3.6V logic circuits. Designed to digitize high-frequency, wide dynamic range signals, it is ideally suited for demanding imaging and communications applications.

With a 72.8dB signal-to-noise ratio and 85dB spurious-free dynamic range at 80MHz sampling, the GX2245 can be used for input signals well beyond Nyquist frequencies, and its high-speed data transfer enables it to meet the requirements for high-speed data transmission in wireless broadband communications. the GX2245 DC specifications include ±1LSB INL (typical), ±0.25LSB DNL (typical) and lossless code. typical) and no leakage codes. The reference noise at the input is very low at 0.96 LSBRMS.

In addition, the GX2245‘s low power consumption helps to extend the battery life of wireless devices, increasing their reliability in portable and mobile applications.With a power consumption of only 60mW at 10Msps, the GX2245 is extremely advantageous for compact layouts, reducing design complexity while lowering the power consumption of the entire system signal chain.The GX2245 is available in a small QFN-32 5mm x 5mm package.